indoor Wall mount 280Ah will notcorrectly charge

Morning, recently added my sixth battery to my system. It currently has two 314 indoor as one and two and four 280 indoor batteries. A grid boss a flexboss 18. And a flexboss 21. FlexBoss, 21 is The master and it is hooked to battery 6. Wear FlexBoss 18 is hooked to battery three. They share batteries. The newest battery which is id4 will not charge to the same voltage as my others. I've even changed my FlexBoss 18 to a master unwired the communication between the other batteries and the inverters and told it it only had the one battery and had it trying to charge up and it just still wouldn't. I've tried the SOC recal break and that seems to have not worked either. Any help would be great. 

Master flexboss21 I'd is - 44700E0278

Slave flexboss18 id is - 52601N0070

How their ID is is deceiving because of how I had to string the communication being you must have three 14s as the primary one and two battery. I added them to an existing three battery system. As you know they just came out and not wanting to unwire and move my FlexBoss 21 to move that battery to become a primary was the reasoning of their positions. Also, if you go on to my network onto the system you will see for the batteries to of communicate correctly. I actually had to go down an ID it seems the 314s like to start it. Battery number zero. So my batteries are 0,1,2,3,4,5. That seems to be the only way that they wanted to communicate correctly. And all the wiring's correct with the custom-made network cables.